Sodium ka pehla electron outermost shell se remove hota hai, jo easy hai. Par dusra electron stable noble gas configuration ko disturb karta hai, isliye itni zyada energy chahiye!
Yeh question maine kal hi practice ki thi, apni coaching ke notes mein.
Waise, paani ke bill ki tarah, pehla kaam aasan lagta hai, lekin doosra bahut mehenga padta hai!
#exams#study
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